Karl Georg von Koskull (1770-1820) Post date 15 January 2021 In the year 1805 after Karl Reinhold von Koskull death the mansion went to Karl Georg von Koskull. The price of the deal is 70 000 silver rubles. ← Karl Reinhold von Koskull (1731-1804) → Gottlieb Heinrich Theodor von Koskull (1774-1834)